On 29th June 2011, over 150 participants gathered in the City of Barcelona, Spain to learn more about and discuss actions to be taken toward mainstreaming Sustainable Tourism. With only one year in existence The Global Sustainable Tourism Council (GSTC), a global organization dedicated to promoting sustainable tourism around the world, held its 2nd Annual Membership Council Meeting. A highlight of the gathering came when the city of Barcelona was awarded the ITR BIOSPHERE certification as a World Class Destination in recognition of the city’s efforts to become a sustainable destination.